import os

from flask import Flask
from flask_cors import CORS


def create_app(test_config=None):
    # create and configure the app
    app = Flask(__name__, instance_relative_config=True)
    app.config.from_mapping(
        SECRET_KEY='dev',
        DATABASE=os.path.join(app.instance_path, 'flaskr.sqlite'),
    )

    CORS(
        app,
        supports_credentials=True,
        origins=["http://192.168.1.52:5173"]
    )


    if test_config is None:
        # load the instance config, if it exists, when not testing
        app.config.from_pyfile('config.py', silent=True)
    else:
        # load the test config if passed in
        app.config.from_mapping(test_config)

    # 初始化绝对路径
    import flaskr.config as config
    config.config['path'] = app.root_path
    print(config.config['path'])
    # ensure the instance folder exists
    try:
        os.makedirs(app.instance_path)
    except OSError:
        pass

    # 确保存在resource文件夹
    try:
        if not os.path.exists("flaskr/resources"):
            os.makedirs("flaskr/resources")
    except OSError:
        print("创建resources文件夹失败")

    # a simple page that says hello
    @app.route('/hello')
    def hello():
        return 'Hello, World!'
    
    from . import db
    db.init_app(app)

    from . import auth
    app.register_blueprint(auth.bp)

    from . import get_data
    app.register_blueprint(get_data.bp)

    from . import event
    app.register_blueprint(event.bp)

    return app